Hi all,
Just for completeness I have the same issue with the latest tech preview build of windows 10 build 10525(64-bit) when I updated to this version I noticed that the windows installer removed speccy 1.28.709 from my system, thinking it was a mistake, (it does happen occassionally) I re-installed speccy and the installation went fine, but, as soon as I tried to run it instant blue screen citing something about cpuZ_X64.sys or somthing like that, I hope your dev team will be able to sort it out fairly quickly. It did work on the previous build of windows 10, so I guess MS changed something